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Investigating Immunisation Strategies of DNA, MVA and CN54rgp140 Adjuvanted With GLA-AF to Maximise Antibody Responses (UKHVCSpoke003)

2016년 9월 26일 업데이트: Imperial College London

A Phase I Clinical Trial Investigating Immunisation Strategies Using DNA, MVA and CN54rgp140 Adjuvanted With GLA-AF to Maximise Antibody Responses

UKHVC Spoke 003 is a randomised Phase I, two centre study which will explore the impact of shortening a vaccination regimen using deoxyribonucleic acid (DNA) (CN54ENV and ZM96GPN), Modified Vaccinia Ankara - C (MVA-C) and CN54rgp140 adjuvanted with glucopyranosyl lipid A adjuvant - aqueous form (GLA-AF). The study population will be 40 healthy male and female volunteers 18 to 45 years old who are at low risk of HIV infection are to be recruited.

Study participants will be immunised with trial immunogens:

  • 8mg DNA: one plasmid encoding a gag-pol-nef polypeptide derived from the 96ZM651-8 clone and one plasmid encoding gp140 env derived from clade C 97CN54
  • 1.108 TCID50 MVA-C (nominal titre) expressing the gag-pol-nef and gp120 env proteins derived from clade-C 97CN54
  • 100ug CN54rgp140, a trimeric recombinant envelope protein derived from clade C 97CN54
  • 5ug GLA-AF, an aqueous glucopyranosyl lipid A adjuvant

All immunisations will be administered by the intramuscular route (IM). CN54gp140 and GLA will be mixed together before administration, and immunogens will be delivered in combination regimens

연구 개요

상세 설명

This is a phase I study exploring the safety and potency of five HIV vaccines in healthy volunteers. The main aim is to see whether three of the five vaccines can be given together rather than one after the other, in five rather than seven sets of vaccinations and a course shortened by eight weeks. All volunteers will receive three injections of the first two vaccines (DNA plasmids) and half will be randomly assigned to receive two injections each of the second (MVA-C) and subsequent vaccines (CN54rgp140 mixed with GLA-AF) during the same visit or two injections of the MVA-C followed by two of CN54rgp140 mixed with GLA-AF.

The investigators are interested in ensuring that the vaccines are safe and also that the immune responses in the two groups of volunteers are similar. The three vaccines have all been shown to stimulate the immune response to specific parts of the HIV virus and none are infectious. The first vaccine consists of two DNA plasmids. When injected into muscle cells small parts of the HIV virus which are encoded by the DNA are produced and these are then recognised by the immune system. The second vaccine MVAC, is derived from vaccinia virus which has been modified so that it cannot divide. The virus (Modified Vaccinia Ankara (MVA)) actually expresses the same portions of HIV as the DNA and results in amplification of the responses seen. The third vaccine is a synthetically produced component of the HIV viral outer coat and it will be administered with an additive which has been shown to greatly enhance particular types of immune response which have recently been shown to play a role in protection against infection

연구 유형

중재적

등록 (실제)

40

단계

  • 1단계

연락처 및 위치

이 섹션에서는 연구를 수행하는 사람들의 연락처 정보와 이 연구가 수행되는 장소에 대한 정보를 제공합니다.

연구 장소

      • Greater London, 영국, W2 1PG
        • Imperial College London
    • Surrey
      • Guildford, Surrey, 영국, GU2 7XP
        • Surrey Clinical Research Centre, University of Surrey

참여기준

연구원은 적격성 기준이라는 특정 설명에 맞는 사람을 찾습니다. 이러한 기준의 몇 가지 예는 개인의 일반적인 건강 상태 또는 이전 치료입니다.

자격 기준

공부할 수 있는 나이

18년 (성인)

건강한 자원 봉사자를 받아들입니다

연구 대상 성별

모두

설명

Inclusion Criteria:

  1. Man or woman aged between 18 and 45 years on the day of screening
  2. Available for follow-up for the duration of the study (up to ~10 months from enrolment)
  3. At low risk of HIV and willing to remain so for the duration of the study defined as:

    • no history of injecting drug use in the previous ten years
    • no gonorrhoea or syphilis in the last six months
    • no high risk partner (e.g. injecting drug use, HIV positive partner) either currently or within the past six months
    • no unprotected anal intercourse in the last six months, outside a relationship with a regular partner known to be HIV negative
    • no unprotected vaginal intercourse in the last six months outside a relationship with a regular known/presumed HIV negative partner
  4. Willing to undergo an HIV test
  5. Willing to undergo a genital infection screen if indicated by sexual history
  6. If heterosexually active female, using an effective method of contraception with partner other than an IUCD/IUS (combined oral contraceptive pill; injectable or implanted contraceptive; consistent record with condoms if using these; physiological or anatomical sterility in self or partner) from 14 days prior to the first vaccination until 4 months after the last, and willing to undergo urine pregnancy tests prior to each vaccination
  7. If heterosexually active male, using an effective method of contraception with their partner from the first day of vaccination until 4 months after the last vaccination
  8. Agree to abstain from donating blood for three months after the end of their participation in the trial, or longer if necessary
  9. Registered with a general practitioner (GP) for at least the past three months
  10. Satisfactory response received from GP before randomisation
  11. Willing and able to give written informed consent

Exclusion Criteria:

  1. Pregnant or lactating
  2. Presence of an IUCD (intrauterine contraceptive device)/IUS (intrauterine system)
  3. Clinically relevant abnormality on history or examination including

    • history of grand-mal epilepsy, seizure disorder or any history of prior seizure
    • severe eczema
    • liver disease with inadequate hepatic function
    • any skin condition which may interfere with the trial assessment on the injection site
    • haematological, metabolic, gastrointestinal or cardio-pulmonary disorders
    • uncontrolled infection; toxic shock syndrome; autoimmune disease, immunodeficiency or use of immunosuppressives in preceding 3 months
  4. Known hypersensitivity to any component of the vaccine formulations used in this trial, or have severe or multiple allergies to drugs or pharmaceutical agents
  5. History of severe local or general reaction to vaccination defined as

    1. local: extensive, indurated redness and swelling involving the major circumference of the arm, not resolving within 72 hours
    2. general: fever >= 39.5°C within 48 hours; anaphylaxis; bronchospasm; laryngeal oedema; collapse; convulsions or encephalopathy within 72 hours
  6. Receipt of live attenuated vaccine within 60 days or other vaccine within 14 days of enrolment
  7. Receipt of an experimental vaccine containing HIV antigens at any time in the past
  8. Receipt of blood products or immunoglobin within 4 months of screening
  9. Participation in another trial of a medicinal product, completed less than 30 days prior to enrolment
  10. HIV 1 or 2 positive or indeterminate on screening
  11. Positive for hepatitis B surface antigen, hepatitis C antibody or serology indicating active syphilis requiring treatment
  12. Grade 1 or above routine laboratory parameters. Hyperbilirubinaemia to be considered an exclusion criterion only when confirmed to be conjugated bilirubinaemia
  13. Unable to read and speak English to a fluency level adequate for the full comprehension of procedures required in participation and consent.
  14. Unlikely to comply with protocol

공부 계획

이 섹션에서는 연구 설계 방법과 연구가 측정하는 내용을 포함하여 연구 계획에 대한 세부 정보를 제공합니다.

연구는 어떻게 설계됩니까?

디자인 세부사항

  • 주 목적: 방지
  • 할당: 무작위
  • 중재 모델: 병렬 할당
  • 마스킹: 없음(오픈 라벨)

무기와 개입

참가자 그룹 / 팔
개입 / 치료
실험적: Group 1 - Combination arm

All participants will receive DNA vaccines at 0,4 and 8 weeks. These will be administered in 2 separate injections of 1ml (CN54ENV into the muscle of the upper right arm and ZM96GPN into the muscle of upper left arm). Participants in group 1 will receive 5 immunisations (DNA, MVA and CN54rgp140 in GLA-AF vaccines) at weeks 0, 4, 8 16 and 20.

At weeks 16 and 20, individuals in group 1 will be given MVAC in a volume of 0.5mls into the upper left arm and also 100ug CN54rgp140 mixed with 5ug GLA-AF in a total volume of 0.4mls into the muscle of the upper right arm.

8mg DNA: one plasmid encoding a gag-pol-nef polypeptide derived from the 96ZM651-8 clone and one plasmid encoding gp140 env derived from clade C 97CN54
1.108 TCID50 MVA-C (nominal titre) expressing the gag-pol-nef and gp120 env proteins derived from clade C 97CN54
100ug CN54rgp140, a trimeric recombinant envelope protein derived from clade C 97CN54
5ug GLA-AF, an aqueous glucopyranosyl lipid A adjuvant
활성 비교기: Group 2 - Non-combination arm

All participants will receive DNA vaccines at 0,4 and 8 weeks. These will be administered in 2 separate injections of 1ml (CN54ENV into the muscle of the upper right arm and ZM96GPN into the muscle of upper left arm). Participants in group 2 will receive 7 immunisations (DNA, MVA and CN54rgp140 in GLA-AF vaccines) at weeks 0, 4, 8, 16, 20, 24 and 28.

At weeks 16 & 20 group 2 will receive only 0.5mls of MVAC into the muscle of the upper left arm. At weeks 24 and 28 they will receive injections of 100ug CN54rgp140 mixed with 5ugGLAAF in a total volume of 0.4mls into the muscle of the upper right arm.

8mg DNA: one plasmid encoding a gag-pol-nef polypeptide derived from the 96ZM651-8 clone and one plasmid encoding gp140 env derived from clade C 97CN54
1.108 TCID50 MVA-C (nominal titre) expressing the gag-pol-nef and gp120 env proteins derived from clade C 97CN54
100ug CN54rgp140, a trimeric recombinant envelope protein derived from clade C 97CN54
5ug GLA-AF, an aqueous glucopyranosyl lipid A adjuvant

연구는 무엇을 측정합니까?

주요 결과 측정

결과 측정
측정값 설명
기간
Magnitude of antibody response
기간: Four weeks after final immunisation
Magnitude (reciprocal mean endpoint titre and concentration) of systemic Immunoglobulin G (IgG) binding antibody responses to CN54rgp140 measured four weeks after the final immunisation.
Four weeks after final immunisation
Adverse Events
기간: Every four weeks up to 32 weeks
Grade 3 or above local solicited adverse event Grade 3 or above systemic clinical and laboratory solicited adverse event Any grade of adverse event that results in a clinical decision to discontinue further immunisations
Every four weeks up to 32 weeks

2차 결과 측정

결과 측정
측정값 설명
기간
Magnitude of neutralising antibody (Nab) responses
기간: Four weeks after the final immunisation
Confirmation of specific investigations will be provided at a later date.
Four weeks after the final immunisation
Magnitude of T-cell and B-cell responses
기간: Four weeks after the final immunisation
Confirmation of specific investigations will be provided at a later date.
Four weeks after the final immunisation
Magnitude of mucosal IgG and IgA antibody responses
기간: Four weeks after the final immunisation
Confirmation of specific investigations will be provided at a later date.
Four weeks after the final immunisation
Magnitude of antibody-dependent cell-mediated cytotoxicity or Antibody-dependent cell-mediated viral inhibition
기간: From first immunisation
Confirmation of specific investigations will be provided at a later date.
From first immunisation
Magnitude of systemic Immunoglobulin A (IgA) binding antibody responses
기간: Four weeks after the final immunisation
Confirmation of specific investigations will be provided at a later date.
Four weeks after the final immunisation

공동 작업자 및 조사자

여기에서 이 연구와 관련된 사람과 조직을 찾을 수 있습니다.

수사관

  • 수석 연구원: Sheena McCormack, MSc, FRCP, Senior Clinical Scientist

연구 기록 날짜

이 날짜는 ClinicalTrials.gov에 대한 연구 기록 및 요약 결과 제출의 진행 상황을 추적합니다. 연구 기록 및 보고된 결과는 공개 웹사이트에 게시되기 전에 특정 품질 관리 기준을 충족하는지 확인하기 위해 국립 의학 도서관(NLM)에서 검토합니다.

연구 주요 날짜

연구 시작

2013년 6월 1일

기본 완료 (실제)

2014년 1월 1일

연구 완료 (실제)

2015년 12월 1일

연구 등록 날짜

최초 제출

2013년 7월 10일

QC 기준을 충족하는 최초 제출

2013년 8월 12일

처음 게시됨 (추정)

2013년 8월 14일

연구 기록 업데이트

마지막 업데이트 게시됨 (추정)

2016년 9월 27일

QC 기준을 충족하는 마지막 업데이트 제출

2016년 9월 26일

마지막으로 확인됨

2013년 8월 1일

추가 정보

이 연구와 관련된 용어

기타 연구 ID 번호

  • CRO2059
  • 2012-003277-26 (EudraCT 번호)

이 정보는 변경 없이 clinicaltrials.gov 웹사이트에서 직접 가져온 것입니다. 귀하의 연구 세부 정보를 변경, 제거 또는 업데이트하도록 요청하는 경우 register@clinicaltrials.gov. 문의하십시오. 변경 사항이 clinicaltrials.gov에 구현되는 즉시 저희 웹사이트에도 자동으로 업데이트됩니다. .

에이즈에 대한 임상 시험

DNA에 대한 임상 시험

구독하다